Is your borderline personality disorder creating chaos in your life? It may be helpful to add more external structure.

Personality often changes with age but not much is known about dark personality traits. A new study investigated the Dark Triad in more than 1,000 volunteers in different age groups.

Discover five psychological traits of those who constantly observe social media but never post anything themselves.

At a basic level, knowing yourself and your preferences can work as an intuitive guide for making most kinds of decisions.